cbcvebase.
CVE-2026-45861
published 2026-05-27

CVE-2026-45861: In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix slab-use-after-free in qd_put Commit a475c5dd16e5 ("gfs2: Free quota data objects…

high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix slab-use-after-free in qd_put Commit a475c5dd16e5 ("gfs2: Free quota data objects synchronously") started freeing quota data objects during filesystem shutdown instead of putting them back onto the LRU list, but it failed to remove these objects from the LRU list, causing LRU list corruption. This caused use-after-free when the shrinker (gfs2_qd_shrink_scan) tried to access already-freed objects on the LRU list. Fix this by removing qd objects from the LRU list before freeing them in qd_put(). Initial fix from Deepanshu Kartikey .

Affected

6 ranges
VendorProductVersion rangeFixed in
linuxlinux——
linuxlinux>= a475c5dd16e57c570113eccba51955b5df8bb052 < ca7c67bdd293089b3483f18886d6b2d0037d2ad9ca7c67bdd293089b3483f18886d6b2d0037d2ad9
linuxlinux>= a475c5dd16e57c570113eccba51955b5df8bb052 < 1d47922b98046b8070a77347fb883a65237928031d47922b98046b8070a77347fb883a6523792803
linuxlinux>= a475c5dd16e57c570113eccba51955b5df8bb052 < 80fff26d7a0c3926b511661c27eecc811a420eef80fff26d7a0c3926b511661c27eecc811a420eef
linuxlinux>= a475c5dd16e57c570113eccba51955b5df8bb052 < 22150a7d401d9e9169b9b68e05bed95f7f49bf6922150a7d401d9e9169b9b68e05bed95f7f49bf69
linuxlinux_kernel——